S7004 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7004 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.068 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
42 mm
Outside diameter tolerance
-0.006mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
1872 lbf
Radial static load rating
934 lbf
Limiting speed
38 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 118.93
/ each
In Stock
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S7004 ACD/P4A Bearing Product Overview & Core Advantages
The S7004 ACD/P4A is a precision single-row angular contact ball bearing engineered for high-performance applications requiring exceptional rotational accuracy and rigidity. Designed to accommodate combined loads (simultaneous radial and axial loads), this bearing features a 25° contact angle for optimal axial load capacity. Manufactured to P4 (ABEC-7) tolerance class, it delivers superior running accuracy, making it ideal for high-speed spindles and precision machinery. The phenolic cage and preloaded design contribute to its high-speed capability and operational stability.
S7004 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle, High Precision | Optimized for axial load capacity and high-speed operation |
| P4A | P4 (ABEC-7) Tolerance Class | Ensures superior running accuracy and minimal vibration |
S7004 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: Manufactured to P4 tolerance standards with a phenolic resin cage that provides excellent dimensional stability and reduced weight for higher limiting speeds
- Optimized Load Capacity: The 25° contact angle enables efficient handling of combined radial and axial loads, while the chrome steel construction ensures durability under demanding conditions
- High-Speed Performance: The lightweight phenolic cage and precision grinding contribute to a limiting speed of 38,000 rpm, suitable for high-speed spindle applications
- Preloaded Design: Available with preload for reduced axial play and enhanced system stiffness in precision applications
S7004 ACD/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles
- High-Speed Motors: CNC spindle drives, precision electric motors
- Precision Instruments: Measuring equipment, optical instruments
- Robotics: High-accuracy robotic joints and actuators
- Aerospace Components: Guidance systems, avionics positioning mechanisms
